Exercise lowers insulin in breast cancer survivors

A study by the Dana-Farber Cancer Institute in Boston measured insulin and blood glucose levels in 101 women. Half were assigned to a 16-week regimen of mixed cardiovascular and strength training, while the other half had normal care. The study found that the women who exercised had lowered their insulin measurements by an amount that approached statistical significance. Relatively high levels of insulin–often found in sedentary and obese people–have been associated with an increased risk of breast cancer recurrence and breast cancer-related death.